Lock cylinder with electromagnetic tumbler

Details Lock cylinder with electromagnetic tumbler Lock cylinder with electromagnetic tumbler

1990-01-31

1991-04-30

Gall, Lloyd A.

Locks

Operating mechanism

Using a powered device

70278, 70283, E05B 4706

Patent

active

050107500

ABSTRACT:
A lock cylinder suitable for mortise locks comprises mechanically operating tumbler pins controlled by a key and at least one electromagnetic tumbler. The cylinder is arranged in a cylinder casing and comprises a coil as well as a locking member which can be displaced by electromagnetic forces for an additional tumbler pin which is spring-loaded in the locking direction and with a reading device which detects a key code. The locking member is pivotally mounted in a recess in the additional tumbler pin and enters the locking position in front of a stop on the cylinder casing.

REFERENCES:
patent: 2802357 (1957-08-01), Smith
patent: 3763676 (1973-10-01), Schachter et al.
patent: 3782147 (1974-01-01), Hallmann
patent: 3942345 (1976-03-01), Sasahara
patent: 4712398 (1987-12-01), Clarkson et al.
patent: 4736970 (1988-04-01), McGourty et al.
patent: 4807454 (1989-02-01), Sengupta et al.

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